640018800

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{3119}}^1$

素因数の和:3165

約数の個数: 240

約数和(自身を含む): 2398656000

約数和(自身を除く): 1758637200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 27, 30, 36, 38, 40, 45, 48, 50, 54, 57, 60, 72, 75, 76, 80, 90, 95, 100, 108, 114, 120, 135, 144, 150, 152, 171, 180, 190, 200, 216, 225, 228, 240, 270, 285, 300, 304, 342, 360, 380, 400, 432, 450, 456, 475, 513, 540, 570, 600, 675, 684, 720, 760, 855, 900, 912, 950, 1026, 1080, 1140, 1200, 1350, 1368, 1425, 1520, 1710, 1800, 1900, 2052, 2160, 2280, 2565, 2700, 2736, 2850, 3119, 3420, 3600, 3800, 4104, 4275, 4560, 5130, 5400, 5700, 6238, 6840, 7600, 8208, 8550, 9357, 10260, 10800, 11400, 12476, 12825, 13680, 15595, 17100, 18714, 20520, 22800, 24952, 25650, 28071, 31190, 34200, 37428, 41040, 46785, 49904, 51300, 56142, 59261, 62380, 68400, 74856, 77975, 84213, 93570, 102600, 112284, 118522, 124760, 140355, 149712, 155950, 168426, 177783, 187140, 205200, 224568, 233925, 237044, 249520, 280710, 296305, 311900, 336852, 355566, 374280, 421065, 449136, 467850, 474088, 533349, 561420, 592610, 623800, 673704, 701775, 711132, 748560, 842130, 888915, 935700, 948176, 1066698, 1122840, 1185220, 1247600, 1347408, 1403550, 1422264, 1481525, 1600047, 1684260, 1777830, 1871400, 2105325, 2133396, 2245680, 2370440, 2666745, 2807100, 2844528, 2963050, 3200094, 3368520, 3555660, 3742800, 4210650, 4266792, 4444575, 4740880, 5333490, 5614200, 5926100, 6400188, 6737040, 7111320, 8000235, 8421300, 8533584, 8889150, 10666980, 11228400, 11852200, 12800376, 13333725, 14222640, 16000470, 16842600, 17778300, 21333960, 23704400, 25600752, 26667450, 32000940, 33685200, 35556600, 40001175, 42667920, 53334900, 64001880, 71113200, 80002350, 106669800, 128003760, 160004700, 213339600, 320009400, 640018800]

約数ペア:

[(1, 640018800), (2, 320009400), (3, 213339600), (4, 160004700), (5, 128003760), (6, 106669800), (8, 80002350), (9, 71113200), (10, 64001880), (12, 53334900), (15, 42667920), (16, 40001175), (18, 35556600), (19, 33685200), (20, 32000940), (24, 26667450), (25, 25600752), (27, 23704400), (30, 21333960), (36, 17778300), (38, 16842600), (40, 16000470), (45, 14222640), (48, 13333725), (50, 12800376), (54, 11852200), (57, 11228400), (60, 10666980), (72, 8889150), (75, 8533584), (76, 8421300), (80, 8000235), (90, 7111320), (95, 6737040), (100, 6400188), (108, 5926100), (114, 5614200), (120, 5333490), (135, 4740880), (144, 4444575), (150, 4266792), (152, 4210650), (171, 3742800), (180, 3555660), (190, 3368520), (200, 3200094), (216, 2963050), (225, 2844528), (228, 2807100), (240, 2666745), (270, 2370440), (285, 2245680), (300, 2133396), (304, 2105325), (342, 1871400), (360, 1777830), (380, 1684260), (400, 1600047), (432, 1481525), (450, 1422264), (456, 1403550), (475, 1347408), (513, 1247600), (540, 1185220), (570, 1122840), (600, 1066698), (675, 948176), (684, 935700), (720, 888915), (760, 842130), (855, 748560), (900, 711132), (912, 701775), (950, 673704), (1026, 623800), (1080, 592610), (1140, 561420), (1200, 533349), (1350, 474088), (1368, 467850), (1425, 449136), (1520, 421065), (1710, 374280), (1800, 355566), (1900, 336852), (2052, 311900), (2160, 296305), (2280, 280710), (2565, 249520), (2700, 237044), (2736, 233925), (2850, 224568), (3119, 205200), (3420, 187140), (3600, 177783), (3800, 168426), (4104, 155950), (4275, 149712), (4560, 140355), (5130, 124760), (5400, 118522), (5700, 112284), (6238, 102600), (6840, 93570), (7600, 84213), (8208, 77975), (8550, 74856), (9357, 68400), (10260, 62380), (10800, 59261), (11400, 56142), (12476, 51300), (12825, 49904), (13680, 46785), (15595, 41040), (17100, 37428), (18714, 34200), (20520, 31190), (22800, 28071), (24952, 25650)]